ID 4.1.1.81 DE threonine-phosphate decarboxylase. AN L-threonine O-3-phosphate carboxy-lyase. AN L-threonine-O-3-phosphate decarboxylase. CA H(+) + O-phospho-L-threonine = (R)-1-aminopropan-2-yl phosphate + CO2. CC -!- Unable to decarboxylate the D-isomer of threonine O-3-phosphate. CC -!- The product of this reaction, (R)-1-aminopropan-2-yl phosphate, CC is the substrate of EC 6.3.1.10, which converts adenosylcobyric acid CC into adenosylcobinamide phosphate in the anaerobic cobalamin CC biosynthesis pathway. DR Q9I468, COBC_PSEAE ; P21633, COBC_SINSX ; Q8EXQ7, COBDQ_LEPIN; DR Q8R5U4, COBD_CALS4 ; Q8Z8H8, COBD_SALTI ; P97084, COBD_SALTY ; //